16
Appendix “C” (continued)
Variations in RS-2 valve mountings to a chiller’s rupture disk.
The
RuptureSeal
™ is designed to be installed directly into the outer flange of the chiller’s rupture
disk,
WITHOUT THE USE OF A 45º or 90º ELBOW TURN BETWEEN THE RUPTURE DISK AND
THE RuptureSeal™,
or any piping extensions. It is highly recommended that the
RuptureSeal
™ be
mounted in one of the “Preferred” ways illustrated below.
However, if you have a situation where the
RuptureSeal
™ cannot be mounted in one of the
“Preferred” arrangements illustrated below, then you can use a straight extension pipe between the
rupture disk and the
RuptureSeal
™, of
UP TO A MAXIMUM OF FOURTEEN INCHES (14”) IN
LENGTH
(see sample illustrations below).
If a typical installation or an installation with a straight pipe extension is not possible, you may have to
modify the chiller by putting a 45º or 90º elbow
BEFORE THE RUPTURE DISK
. The
RuptureSeal
™
valve can then be mounted to the outer rupture disk flange to assure that, if there is a rupture, all of
the carbon fragments of the disk will be projected straight into the
RuptureSeal
™ carbon fragment
collection trap.
Chiller
Chiller
Chiller
Chiller
Preferred Installation - 1
Preferred Installation - 2
Alternate - 1 (with 14" pipe extension)
Alternate - 2 (with 14" pipe extension)
Caution:
DO NOT ATTEMPT TO MOUNT THE
RuptureSeal™
UTILIZING A 45º or 90º
ELBOW TURN AFTER THE RUPUTRE DISK, OR UTILIZING BOTH A 45º or 90º ELBOW
TURN AND A PIPE EXTENSION BETWEEN THE CHILLER’S RUPTURE DISK AND THE
RuptureSeal™.
In the event of a rupture, this could inhibit the normal functioning of the
carbon fragment collection trap and thereby cause the v alve not to work properly. (See
illustrations of the two types of prohibited installations on the left below.
Chiller
Chiller
Typical Installation on
chillers using R-123
Alternate - 3
Installation utilizing a 90 degree
elbow and a 14" pipe extension
after the chiller's rupture disk
(NOT AUTHORIZED)
Installation utilizing a 90
degree elbow turan after
the chiller's rupture disk
(NOT AUTHORIZED)
Chiller
Chiller
Note: Double check valve
output is piped to line from
valve drain hole to drip leg
Note: Check Valve
mounted in
vertical position
